EP1177886A1 - Press- oder Stanzautomat - Google Patents
Press- oder Stanzautomat Download PDFInfo
- Publication number
- EP1177886A1 EP1177886A1 EP00116571A EP00116571A EP1177886A1 EP 1177886 A1 EP1177886 A1 EP 1177886A1 EP 00116571 A EP00116571 A EP 00116571A EP 00116571 A EP00116571 A EP 00116571A EP 1177886 A1 EP1177886 A1 EP 1177886A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- correction
- ram
- stored
- correction value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
- B30B15/0041—Control arrangements therefor
Definitions
- the invention relates to a press or punch press with a press table and with a reciprocating one Plunger and with an adjustment device for Adjustment of the ram reversal position during operation of the press or punching press, with the adjusting device a control device is assigned for stroke-dependent correction of the tappet reversal position.
- EP 0 428 780 B1 proposes the control or regulating unit a target characteristic to specify the immersion depth depending on the number of strokes per minute of the press or Stamping machine reproduces.
- This characteristic curve passes the entire stroke rate range is the nominal value of the immersion depth before, which is then compared with the measured actual value can be.
- the possibility of correcting the specified target characteristic provided by a from the target characteristic deviating difference value for the immersion depth at a certain number of strokes can be entered and the course the target characteristic curve according to the entered Differential value over the entire stroke rate range is recalculated.
- the object of the present invention is to provide a press or automatic punching machines of the type mentioned at the outset to further develop that without the use of a sensor for the immersion depth in a structurally simple way the lowest possible tool wear and one high precision of the machined workpieces.
- This task is done with a press or punching machine of the generic type solved according to the invention by that the adjustment device by entering a certain Correction value for the ram reversal position is actuated at a certain number of strokes, the Control device the input element for the correction value comprises and a storage element for storing the entered correction value and the assigned number of strokes.
- press or punching machines usually only with some, always recurring stroke rates are operated.
- commissioning the press or Die cutters or during a test phase can be according to the invention by an operator by direct Assessment of the quality of the machined workpieces determine a ram position correction profile and for the subsequent operation of the press or Save the punch press. This is done by the operator the quality of the at a certain stroke rate machined workpiece and - if necessary - a present plunger position (starting position) by entering a correction value changed until an optimal work result is achieved.
- This correction value is combined with the corresponding one Strokes in the memory element of the control device stored.
- Enter the number of strokes corresponding to the correction value can also be done by the operator. It is particularly advantageous if when entering the correction value during the ongoing operation of the press or punching presses the number of strokes then present is automatically detectable and storable.
- each correction value profile tool and / or workpiece-specific correction values and the each associated number of strokes are, each correction value profile tool and / or workpiece-specific correction values and the each associated number of strokes.
- This makes possible an operator during a test phase Ram positions for different, in the following Workpieces and tools used continuously each optimally set, the desired Correction values and the assigned number of strokes and saved specifically for the workpiece.
- This has the particular advantage that the setting of the press or punch press to the optimal one Tappet position to be made by a specialist can, while the subsequent operation of the press or punching machines in continuous operation by less qualified Operators can be made.
- the plunger position is not only from those available at a certain number of strokes Mass forces of the press or punching machine dependent, but also of other operating parameters, in particular the operating temperature of the press or punching machine.
- the control device has an adaptation unit includes to adjust the stored Correction values to at least one operating parameter of the Press or punching machines.
- the adaptation unit the saved correction values with a Correction factor linked regardless of stroke rate. This allows a particularly simple adjustment of the saved Correction values to the operating parameters of the Press or punching machines by all correction values, for the workpiece-tool combination used determined during a test phase with a constant for all stroke rates Correction factor knotted, for example multiplied or be added.
- the adaptation unit stores the stored Correction values with a correction factor linked depending on the stroke rate. This gives the opportunity a nonlinear relationship between the number of strokes and Adjustment needs to be taken into account. For example be provided that correction values to which a corresponds to a high number of strokes, for example more than 1000 Strokes per minute, preferably 1200 to 1600 strokes per Minute, a percentage adjustment to an operating parameter experienced as correction values, which one corresponds to a lower number of strokes.
- the adaptation unit can be linked the stored correction values with a correction factor especially the influence of the operating temperature of the press or punch press.
- the adaptation unit the stored correction values with the operating time of the press or punching machine considering correction factor linked. This way, for example, the Wear of the tool that sets the operating time the positioning of the plunger are taken into account.
- a fast punching machine is shown schematically in FIG shown, the total with the reference number 10 is occupied. It includes a frame-like frame 12 with a press table 14 and one of one Drive unit 16 driven, in the vertical direction reciprocating plunger 18.
- the drive unit 16 is supported by four pillars 20, the arranged at the corner points of a tool installation space 22 are in the vertical direction of the plunger 18th on the one hand and limited by the press table 14 on the other is.
- the drive unit 16 To drive the plunger 18, the drive unit 16 an eccentric shaft 24, which by means of roller bearings 26 rotatably held on the frame 12 and by means of a Drawing not shown, known drive motor can be driven to rotate.
- the eccentric shaft 24 On the eccentric shaft 24, two connecting rods 28, 29 are rotatable kept with their respective free ends over a to adjust the position of the bottom dead center of the Ram 18 provided adjusting device 30 on the ram 18 are set.
- the adjustment device 30 is via a drive shown schematically in Figure 2 47 operable, the drive 47 being a control device 49 is assigned as below with reference is explained in more detail in FIG.
- a guide column 32 set with its free Ends above and below the tool installation space 22 displaceable in a roller bearing 34 preloaded without play is held so that the plunger 18 by means of of the guide columns 34 and the respective roller bearings 34 is guided exactly in the vertical direction.
- An oil cooling circuit is used to cool the automatic punching machine 10 36 provided with an integrated in the press table 14 Oil tank 37 and with the oil tank 37 with the cooling lines 38 connecting the drive unit 16.
- the rapid punching machine 10 can be used to process Workpieces with stroke rates up to approximately 1600 strokes per Minute.
- To measure the respective Stroke rate is a schematically shown in Figure 2 Stroke number sensor 46 is provided.
- the position of the plunger 18 relative to the press table 14 by means of the adjusting device 30 can be adjusted.
- the adjusting device 30 is driven by the drive 47 actuated, which is controlled by the control device 49 is.
- the latter comprises a correction value memory 51, via an input element 53 from an operator Correction values can be entered.
- the entered Correction values are stored in the correction value memory together with the number of strokes prevailing when entering stored.
- the correction value memory is for this purpose 51 with the stroke rate sensor 46 in electrical Connection.
- the Rapid punching machine 10 an operating temperature sensor 55, which, like an operating time counter 57 with a Adaptation unit 59 of the control device 49 in electrical Connection is established.
- the correction values stored in the correction value memory 51 can together with the assigned stroke rates queried via a data line 61 and to the adaptation unit 59 are transmitted.
- the requested correction values link with a correction factor in the adjustment unit 59 based on that from the operating temperature sensor 55 and the operating time counter 57 transmitted Values is determined. That way the prevailing operating parameters adjusted correction value then serves to control the drive 47.
- the prevailing operating parameters adjusted correction value then serves to control the drive 47.
- Control signal via a control line 63 to the drive 47 are transmitted so that the adjusting device 30 the plunger position according to the adjusted correction value readjusted.
- the required correction values are entered here, as is clear from FIG. 1, by means of a Keypad 65, the stored correction values available at any time and on a screen 67 can be displayed. In this way, during continuous operation of the automatic punching machine 10 the stored Correction values are queried as well as the prevailing operating parameters and the determined from them Correction factors.
- a certain plunger position is given as the starting position. This can be done, for example, during commissioning of the automatic punching machine 10, by an operator Correct depending on the stroke rate. To do this the fast punching machine 10 with a certain number of strokes and using a specific tool for machining of the workpiece operated. The quality of the the workpiece being machined by the operator assessed and if necessary the plunger position by entering a correction value corrected. You can use the Input element 53 entered in the correction value memory 51 where the correction value along with the prevailing number of strokes is stored. During the Test phase will be according to the entered correction value the drive 47 of the adjusting device 30 is controlled, so that the plunger 18 the desired position takes, with which an optimal work result can be achieved is.
- the during Test phase entered correction values for a specific Tool-workpiece combination called and for control of the drive 47 can be used. in this connection can influence the operating temperature and / or Operating time on the plunger position also taken into account find by the stored correction values by means of the adaptation unit 59 to the respective prevailing operating parameters can be adjusted.
- control device explained above 49 can easily be optimal plunger positions achieve for all stroke rates, that in continuous operation of the automatic punching machine 10 are provided.
- the construction according to the invention is characterized by their particular simplicity, because an ongoing measurement the prevailing immersion depth can also be are eliminated like an elaborate control unit in which the prevailing actual value of the immersion depth with a given Setpoint is compared.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Presses (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
- Figur 1:
- eine schematische Darstellung eines Schnellstanzautomaten und
- Figur 2:
- ein Blockschaltbild einer Steuereinrichtung für eine Verstelleinrichtung des in Figur 1 dargestellten Schnellstanzautomatens.
Claims (9)
- Press- oder Stanzautomat mit einem Pressentisch (14) und einem hin- und herbewegbaren Stößel (18) sowie mit einer Verstelleinrichtung (30) zur Verstellung der Stößelumkehrposition während des Betriebes des Press- oder Stanzautomaten (10), wobei der Verstelleinrichtung (30) eine Steuereinrichtung (49) zugeordnet ist zur hubzahlabhängigen Korrektur des Stösselhubes, dadurch gekennzeichnet, daß die Verstelleinrichtung (30) durch Eingabe eines gewünschten Korrekturwertes für die Stößelumkehrposition bei einer bestimmten Hubzahl betätigbar ist, wobei die Steuereinrichtung (49) das Eingabe-element (53) für den Korrekturwert umfaßt sowie ein Speicherelement (51) zum Speichern des eingegebenen Korrekturwertes und der zugeordneten Hubzahl.
- Press- oder Stanzautomat nach Anspruch 1, dadurch gekennzeichnet, daß als Korrekturwert für die Stösselumkehrposition die Abweichung der Stößelposition im unteren Totpunkt des Stößels (18) von einer Ausgangsstellung eingebbar ist.
- Press- oder Stanzautomat nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß mehrere Korrekturwerte zu verschiedenen Hubzahlen eingebbar und speicherbar sind.
- Press- oder Stanzautomat nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß mehrere Korrekturwertprofile eingebbar und speicherbar sind, wobei jedes Korrekturwertprofil werzeug- und/oder werkstückspezifische Korrekturwerte und die jeweils zugeordneten Hubzahlen umfaßt.
- Press- oder Stanzautomat nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die Steuereinrichtung (49) eine Anpassungseinheit (49) umfaßt zur Anpassung der abgespeicherten Korrekturwerte an Betriebsparameter des Press- oder Stanzautomaten (10).
- Press- oder Stanzautomat nach Anspruch 5, dadurch gekennzeichnet, daß die Anpassungseinheit (59) die abgespeicherten Korrekturwerte mit einem Korrekturfaktor hubzahlunabhängig verknüpft.
- Press- oder Stanzautomat nach Anspruch 5, dadurch gekennzeichnet, daß die Anpassungseinheit (59) die abgespeicherten Korrekturwerte mit einem Korrekturfaktor hubzahlabhängig verknüpft.
- Press- oder Stanzautomat nach Anspruch 5, 6 oder 7, dadurch gekennzeichnet, daß die Anpassungseinheit (59) die abgespeicherten Korrekturwerte mit einem die Betriebstemperatur des Press- oder Stanzautomaten berücksichtigenden Korrekturfaktor verknüpft.
- Press- oder Stanzautomat nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, daß die Anpassungseinheit (59) die abgespeicherten Korrekturwerte mit einem die Betriebsdauer des Press- oder Stanzautomaten berücksichtigenden Korrekturfaktor verknüpft.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50015498T DE50015498D1 (de) | 2000-08-01 | 2000-08-01 | Press- oder Stanzautomat |
EP00116571A EP1177886B1 (de) | 2000-08-01 | 2000-08-01 | Press- oder Stanzautomat |
AT00116571T ATE418444T1 (de) | 2000-08-01 | 2000-08-01 | Press- oder stanzautomat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00116571A EP1177886B1 (de) | 2000-08-01 | 2000-08-01 | Press- oder Stanzautomat |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1177886A1 true EP1177886A1 (de) | 2002-02-06 |
EP1177886B1 EP1177886B1 (de) | 2008-12-24 |
Family
ID=8169411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00116571A Expired - Lifetime EP1177886B1 (de) | 2000-08-01 | 2000-08-01 | Press- oder Stanzautomat |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1177886B1 (de) |
AT (1) | ATE418444T1 (de) |
DE (1) | DE50015498D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3117988A1 (de) * | 2015-07-06 | 2017-01-18 | Andritz Technology and Asset Management GmbH | Presse mit variablem massenausgleich und verfahren zum anpassen der masse des massenausgleichs |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2731084A1 (de) * | 1977-07-09 | 1979-01-18 | Schuler Gmbh L | Stellantrieb fuer eine stoesselverstellung einer schnittpresse |
DE3439459A1 (de) * | 1983-12-29 | 1985-07-11 | Fukui Machinery Co., Ltd., Fukui | Vorrichtung zur automatischen korrektur der position eines schlittens in einer presse |
JPH01299798A (ja) * | 1988-05-27 | 1989-12-04 | Yamada Dobby Co Ltd | プレス機における下死点位置補正装置 |
EP0428780A1 (de) * | 1988-10-28 | 1991-05-29 | Bruderer Ag | Stanzpresse mit Korrekturwerteingabe für die Eintauchtiefe und die Vorschublänge |
US5090282A (en) * | 1988-07-28 | 1992-02-25 | Bruderer Ag | Method of and apparatus for reducing the punching stress of a punching machine having fixed abutments |
US5140834A (en) * | 1989-10-19 | 1992-08-25 | Aida Engineering, Ltd. | Device for automatic adjustment of die height of a press |
-
2000
- 2000-08-01 DE DE50015498T patent/DE50015498D1/de not_active Expired - Lifetime
- 2000-08-01 EP EP00116571A patent/EP1177886B1/de not_active Expired - Lifetime
- 2000-08-01 AT AT00116571T patent/ATE418444T1/de not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2731084A1 (de) * | 1977-07-09 | 1979-01-18 | Schuler Gmbh L | Stellantrieb fuer eine stoesselverstellung einer schnittpresse |
DE3439459A1 (de) * | 1983-12-29 | 1985-07-11 | Fukui Machinery Co., Ltd., Fukui | Vorrichtung zur automatischen korrektur der position eines schlittens in einer presse |
JPH01299798A (ja) * | 1988-05-27 | 1989-12-04 | Yamada Dobby Co Ltd | プレス機における下死点位置補正装置 |
US5090282A (en) * | 1988-07-28 | 1992-02-25 | Bruderer Ag | Method of and apparatus for reducing the punching stress of a punching machine having fixed abutments |
EP0428780A1 (de) * | 1988-10-28 | 1991-05-29 | Bruderer Ag | Stanzpresse mit Korrekturwerteingabe für die Eintauchtiefe und die Vorschublänge |
US5140834A (en) * | 1989-10-19 | 1992-08-25 | Aida Engineering, Ltd. | Device for automatic adjustment of die height of a press |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 014, no. 087 (M - 0937) 19 February 1990 (1990-02-19) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3117988A1 (de) * | 2015-07-06 | 2017-01-18 | Andritz Technology and Asset Management GmbH | Presse mit variablem massenausgleich und verfahren zum anpassen der masse des massenausgleichs |
Also Published As
Publication number | Publication date |
---|---|
EP1177886B1 (de) | 2008-12-24 |
ATE418444T1 (de) | 2009-01-15 |
DE50015498D1 (de) | 2009-02-05 |
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